@ ProgramNode (location: (1,0)-(1,8))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(1,8))
    └── body: (length: 1)
        └── @ SuperNode (location: (1,0)-(1,8))
            ├── keyword_loc: (1,0)-(1,5) = "super"
            ├── lparen_loc: ∅
            ├── arguments:
            │   @ ArgumentsNode (location: (1,6)-(1,8))
            │   ├── arguments: (length: 1)
            │   │   └── @ IntegerNode (location: (1,6)-(1,8))
            │   │       └── flags: decimal
            │   └── flags: ∅
            ├── rparen_loc: ∅
            └── block: ∅
